Abstract
Two field experiments were carried out during the two successive seasons of 2001/2002 and 2002/2003 at the Experimental Station of National Research Centre at Shalkan, Kalubia Governorate to study the response of growth and yield of onion to potassium sulphate fertilizer at rates of 0, 150 and 300 kg/fed, as well as potassium humate at rate of 0, 3, 6 and 12 L/fed. The important obtained results were as follows:- Increasing the potassium addition level up to 150 kg/fed had a significant effect on the growth characters, i.e. plant height, number of leaves / plant, fresh and dry weight of whole plant as well as total yield and its components (bulb weight as g / bulb and bulb dimension. Also, gave the highest percentage of TSS, N, P, K, Fe, Mn, Zn and Cu. Increasing the potassium addition from 150 up to 300 kg/fed caused a reduction in growth characters, yield and chemical characters, (TSS, N, P, K and Fe, but increased Mn, Zn and Cu). Foliar application of potassium humate at different levels, i.e. 0, 3, 6 and 12 L/fed. had a significant effect on growth characters and total yield and its components as well as chemical characters all of them resulted its highest values only with that onion plants, which sprayed with humic acid at 6 L/fed, but that onion plants, which sprayed with humic acid at levels of 12 L/fed resulted less plant growth as well as yield and its components, in addition caused an increment in TSS, N, P, K, Fe, Mn and Zn in bulb tissues.
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Claims 8
Claim · model-written summary
Raising potassium sulphate up to 150 kg/fed significantly affected onion growth characters.
- Taxon
- onion
Allium cepat0 - Treatment
- potassium addition level up to 150 kg/fede0
- Outcome
- growth characterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“Increasing the potassium addition level up to 150 kg/fed had a significant effect on the growth characters”
Claim · model-written summary
Raising potassium sulphate up to 150 kg/fed significantly affected total yield and its components (bulb weight and bulb dimension) of onion.
- Taxon
- onionAllium cepat0
- Treatment
- potassium addition level up to 150 kg/fede0
- Outcome
- total yield and its componentse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“Increasing the potassium addition level up to 150 kg/fed had a significant effect on the growth characters, i.e. plant height, number of leaves / plant, fresh and dry weight of whole plant as well as total yield and its components”
Claim · model-written summary
Potassium at 150 kg/fed gave the highest percentage of TSS, N, P, K, Fe, Mn, Zn and Cu in onion.
- Taxon
- onionAllium cepat0
- Treatment
- potassium addition level up to 150 kg/fede0
- Outcome
- highest percentage of TSS, N, P, K, Fe, Mn, Zn and Cue1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“Increasing the potassium addition level up to 150 kg/fed”
e1“Also, gave the highest percentage of TSS, N, P, K, Fe, Mn, Zn and Cu”
Claim · model-written summary
Increasing potassium from 150 up to 300 kg/fed reduced onion growth characters, yield and chemical characters (TSS, N, P, K and Fe).
- Taxon
- onionAllium cepat0
- Treatment
- potassium addition from 150 up to 300 kg/fede0
- Outcome
- growth characters, yield and chemical characterse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“Increasing the potassium addition from 150 up to 300 kg/fed caused a reduction in growth characters, yield and chemical characters, (TSS, N, P, K and Fe”
Claim · model-written summary
Increasing potassium from 150 up to 300 kg/fed increased Mn, Zn and Cu in onion.
- Taxon
- onionAllium cepat0
- Treatment
- potassium addition from 150 up to 300 kg/fede0
- Outcome
- Mn, Zn and Cue0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“Increasing the potassium addition from 150 up to 300 kg/fed caused a reduction in growth characters, yield and chemical characters, (TSS, N, P, K and Fe, but increased Mn, Zn and Cu”
Claim · model-written summary
Foliar potassium humate (0, 3, 6 and 12 L/fed) significantly affected onion growth characters, total yield and its components and chemical characters, with the highest values at 6 L/fed humic acid.
- Taxon
- onionAllium cepat0
- Treatment
- sprayed with humic acid at 6 L/fede0
- Outcome
- growth characters and total yield and its componentse0
- Direction
- highest valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“Foliar application of potassium humate at different levels, i.e. 0, 3, 6 and 12 L/fed. had a significant effect on growth characters and total yield and its components as well as chemical characters all of them resulted its highest values only with that onion plants, which sprayed with humic acid at 6 L/fed”
Claim · model-written summary
Spraying onion with humic acid at 12 L/fed resulted in less plant growth and less yield and its components.
- Taxon
- onionAllium cepat0
- Treatment
- humic acid at levels of 12 L/fede0
- Outcome
- plant growth as well as yield and its componentse0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“sprayed with humic acid at levels of 12 L/fed resulted less plant growth as well as yield and its components”
Claim · model-written summary
Spraying onion with humic acid at 12 L/fed increased TSS, N, P, K, Fe, Mn and Zn in bulb tissues.
- Taxon
- onionAllium cepat0
- Organ / stage
- bulb tissuese0
- Treatment
- humic acid at levels of 12 L/fede0
- Outcome
- TSS, N, P, K, Fe, Mn and Zne0
- Direction
- incremente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION PLANTS”
e0“sprayed with humic acid at levels of 12 L/fed resulted less plant growth as well as yield and its components, in addition caused an increment in TSS, N, P, K, Fe, Mn and Zn in bulb tissues”
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